diff --git a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
index 260f95bfb9..c947d4f471 100644
--- a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
+++ b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
@@ -4241,7 +4241,7 @@ final class ParserImpl implements Parser {
                             : ((RowN) left).isNotNull()
                         : left instanceof Field
                             ? ((Field) left).isNull()
-                            : ((RowN) left).isNotNull();
+                            : ((RowN) left).isNull();
 
                 parseKeyword(ctx, "DISTINCT FROM");
                 if (left instanceof Field) {